indexo.dev

zlketang.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 3103 ms crawled 2026-05-18

CN · 123.56.49.167 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
之了课堂-会计职业教育培训网校_学会计就上之了课堂
Description
之了课堂是专注于会计职业教育培训的会计网校，提供初级会计职称、中级会计职称、高级会计职称、注册会计师、税务师、中级经济师、会计实操等培训服务，学会计就上之了课堂。
Language
zh-CN
Canonical
https://www.zlketang.com/

Technology

Third-party hosts loaded (1)

  • at.alicdn.com×2

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2016-08-27
Expires
2027-08-27 463 days left
Updated
2025-06-25
Name servers
  • vip1.alidns.com
  • vip2.alidns.com

DNS records live

NS
  • vip1.alidns.com
  • vip2.alidns.com
MX
  • 10 mxw.mxhichina.com
  • 5 mxn.mxhichina.com

Email authentication weak

SPF
v=spf1 include:spf.qiye.aliyun.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2026-03-23 to 2026-10-08
Expires in 140 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zlketang.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (14)

Linked from (13)